TY - GEN ID - cogprints5779 UR - http://cogprints.org/5779/ A1 - Froese, Mr Tom A1 - Virgo, Mr Nathaniel A1 - Izquierdo, Mr Eduardo Y1 - 2007/// N2 - In the field of artificial life there is no agreement on what defines ?autonomy?. This makes it difficult to measure progress made towards understanding as well as engineering autonomous systems. Here, we review the diversity of approaches and categorize them by introducing a conceptual distinction between behavioral and constitutive autonomy. Differences in the autonomy of artificial and biological agents tend to be marginalized for the former and treated as absolute for the latter. We argue that with this distinction the apparent opposition can be resolved. PB - Springer-Verlag KW - autonomy KW - artificial life KW - life KW - autopoiesis TI - Autonomy: a review and a reappraisal AV - public ER -